Means for impregnating fabrics with liquids



2 Sheets-$heet 1 1945- R. H. CZECZOWITZKA MEANS FOR IMPREGNATING FABRICSWITH LIQUID Filed June 18,1943

I 5 r In en/tor .Czeczonnizkm uuun un 1945' R. H. CZECZOWITZKA 2,376,290

I 'MEANS FOR IMPREGNATING FABRICS WITH LIQUID Filed June 18, 1343 2Sheets-Sheet 2 1n UGILZOZ? liH. czeczowbizls'w Patented Feb. 27, 1945MEANS FOR IMPREGNATING FABRICS WITH LIQUIDS Rudolph HerbertOzeczowitzka, Pendleton, Salford, England, assignor to Texproof Limited,Pendleton, England, a British company Application June 18, 1943, SerialNo. 491,369

' In Great Britain June 19, 1942 This-invention has for its object toprovide an improved machine for effecting the impregnation of fabricswith volatile liquidsor solutions containing volatile liquids withminimum loss of solvent and with a minimum of skin formation on themachine due to deposit of the liquid and evaporation of, solventtherefrom,

A machine in accordance with this invention comprises a tank or vesselof a length to suitthe width of the fabric being impregnated, with aroller or rollers beneath the surface of the impregnating liquid in thetank or vessel, and with squeezing rollers to remove excess of liquidfrom the fabric as it leaves the tank or vessel, and a lid which makes ajoint with the vessel except at the parts'where the fabric passes intoand out of the vessel, the lid at such parts coming adjacent to surfacesof the vessel, so that the thickness of the fabric serves to seal thegap between the said parts and to prevent or minimize escape of solventI b at its opposite ends on to which the lid 0 is clamped by the wingnuts d. There is an mtemal flange e along the opposite sides of the topof the tank and the lid 0 when clamped in place extends into and belowthe space between such flanges, being approximately a fit between? theflanges. By reason of the lid coming below the flanges, a narrow gap isleft between the lower edge of the flange and the upper edge of the lidat its opposite sides, and the fabric 1 enters and leaves the tankthrough such gaps; it is deflected by the walls of the gaps as shown inFigure 2 and thus serves to seal the gaps against the escape ofsolventfrom the tank.

A roller 0 at the bottom of the tank around which the fabric passesguides the latter through 1 Claim. (Cl. 68-19) V 1 the correct level byan inlet valve h controlled by Adjacent to the outlet gap is a pair ofrods 1', is, between which the fabric passes just prior to leaving themachine. Such rods which do not revolve, but deflect the tensionedfabric as shown in Figure 2 and serve to remove excess liquid from thefabric. The rod It is adjustable relatively to the rods from outside themachine bythe screw m to alter the extent to which the fabric isdeflected and so the extent of the scraping action of the rods upon thefabric.

All the rods are located at their ends in slots in the tank walls andcan be readily removed when the lid is out of position. The adjacentedges of the lid and tank flanges are rounded to prevent damage to thefabric passing between them. I provide a drain connection 11. foremptying the tank and I may provide a screw or jack 0 for tilting thetank to facilitate drainage. A gauge p can be used for showing theliquid level in the tank.

What I claim is: v

A machine for use in impregnating fabrics with a volatile liquid or witha solution containing a volatile liquid comprising a tank or vessel of alength to suit the width of the fabric being impregnated, with at leastone roller around which the fabric travels beneath the surfaceof theimpregnating liquid in the tank or vessel, spaced rods adjacent to thefabric exit from the tank and above the level of the liquid therein,each rod deflecting the path of the cloth as it passes between and overthe rods so that the latter remove excess of liquid from the fabric,just prior to its leaving the tank or vessel, and a lid which makes ajoint with the vesselexcept at the parts where the fabric passes intoand out of the vessel, the lid at such parts coming adjacent to surfacesof the vessel, the adjacent surfaces of lid and vesseleach deflectingthe path of the fabric passing into "'and out ofthe vessel so that thefabric serves to sides of the fabric which is under tension and I thusinsure a smooth even surface spreading.

the impregnating liquid which is maintained at RUDOLPH HERBERTCZEXJZOWITZKA.

